Usually five to ten kilograms, but I don't think this method is desirable. I have friends who use cucumbers and eggs instead of staple food. After a week, they obviously lost weight. As we all know, it is obvious that they weigh five or six kilograms (not very fat, of course). But his face is obviously sallow and dark, not as rosy as before. Therefore, it is recommended that friends who lose weight do it properly, eat healthily, eat less red meat and try to avoid frying. Vegetables can't be less than protein. Eating less and moving more is the last word!